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Debt (Tables)
 6 Months Ended
Jun. 30, 2012
Debt Disclosure [Abstract]  
Schedule Of Debt
Debt consisted of the following at June 30, 2012 and December 31, 2011:
 
 
June 30,
2012
 
December 31,
2011
 
 
(In thousands)
Senior Notes
 
$
600,000

 
$
600,000

Unamortized discount for Senior Notes
 
(5,163
)
 
(5,464
)
Convertible Senior Notes
 
73,750

 
73,750

Unamortized discount for Convertible Senior Notes
 
(2,459
)
 
(3,799
)
Senior Secured Revolving Credit Facility
 
130,000

 
47,000

U.K. Huntington Field Development Project Credit Facility
 
37,000

 
17,813

 
 
833,128

 
729,300

Less: Current maturities of Huntington Facility due June 30, 2013
 
(16,650
)
 
—

 
 
$
816,478

 
$
729,300